Home / 368,981,185,205.20-553,471,777,807.80-103,985,570,729.20

Finding the Fourth Proportional to 368,981,185,205.20, 553,471,777,807.80 and 103,985,570,729.20

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Solution

The fourth proportional to 368,981,185,205.20, 553,471,777,807.80 and 103,985,570,729.20 is: 155,978,356,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,981,185,205.20 : 553,471,777,807.80 = 103,985,570,729.20 : x
  2. Step 2: Convert to fraction form
    368,981,185,205.20/553,471,777,807.80 = 103,985,570,729.20/x
  3. Step 3: Cross multiply
    368,981,185,205.20x = 553,471,777,807.80 × 103,985,570,729.20
  4. Step 4: Simplify right side
    368,981,185,205.20x = 57,553,078,697,849,060,851,712
  5. Step 5: Solve for x
    x = 57,553,078,697,849,060,851,712/368,981,185,205.20
  6. Step 6: Final answer
    x = 155,978,356,093.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.